/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2020. All rights reserved.
 * Description: Network Sockets Alt
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --------------------------------------------------------------------------- */

#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

#if !defined(MBEDTLS_NET_C)


#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#endif

#include "mbedtls/net_sockets.h"

#include "osdepends/atiny_osdep.h"
#include "atiny_socket.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

void mbedtls_net_init(mbedtls_net_context *ctx)
{
    ctx->MBEDTLS_PRIVATE(fd) = -1;
}

int  mbedtls_net_connect(mbedtls_net_context *ctx, const char *host, const char *port, int proto)
{
     int ret = atiny_net_connect((atiny_net_context*)ctx, host, port, proto);
     return ret;
}

void mbedtls_net_usleep(unsigned long usec)
{
    atiny_usleep(usec);
}

int mbedtls_net_recv(void *ctx, unsigned char *buf, size_t len)
{
    int ret = atiny_net_recv(ctx, buf, len);

    if (ret == 0) {
        return MBEDTLS_ERR_SSL_WANT_READ;
    } else if (ret < 0) {
        return MBEDTLS_ERR_NET_RECV_FAILED;
    }

    return ret;
}

int mbedtls_net_recv_timeout(void *ctx, unsigned char *buf, size_t len,
                             uint32_t timeout)
{
    int ret = atiny_net_recv_timeout(ctx, buf, len, timeout);

    if (ret < 0) {
        return MBEDTLS_ERR_SSL_TIMEOUT;
    } else if (ret == 0) {
        return MBEDTLS_ERR_SSL_WANT_READ;
    }

    return ret;
}

int mbedtls_net_send(void *ctx, const unsigned char *buf, size_t len)
{
    int ret = atiny_net_send(ctx, buf, len);

    if (ret == 0) {
        return MBEDTLS_ERR_SSL_WANT_WRITE;
    } else if (ret < 0) {
        return MBEDTLS_ERR_NET_SEND_FAILED;
    }

    return ret;
}

void mbedtls_net_free(mbedtls_net_context *ctx)
{
    atiny_net_close(ctx);
}

int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
                        mbedtls_net_context *client_ctx,
                        void *client_ip, size_t buf_size, size_t *ip_len )
{
    int ret = atiny_net_accept(bind_ctx, client_ctx, client_ip, buf_size, ip_len);

    if (ret == ATINY_NET_ERR) {
        return MBEDTLS_ERR_NET_UNKNOWN_HOST;
    } else if (ret == ATINY_NET_SOCKET_FAILED) {
       return MBEDTLS_ERR_NET_SOCKET_FAILED;
    } else if (ret == ATINY_NET_BIND_FAILED) {
      return MBEDTLS_ERR_NET_BIND_FAILED;
    } else if (ret == ATINY_NET_LISTEN_FAILED) {
        return MBEDTLS_ERR_NET_LISTEN_FAILED;
    } else if (ret == ATINY_NET_ACCEPT_FAILED) {
        return MBEDTLS_ERR_NET_ACCEPT_FAILED;
    } else if(ret == ATINY_NET_BUF_SMALL_FAILED) {
        return MBEDTLS_ERR_NET_BUFFER_TOO_SMALL;
    }

    return ret;
}

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* MBEDTLS_NET_C */